PHM 230 pH-instrument incl. temperature sensor - Dostmann
TFA Dostmann Check pH Meter ATC Water Quality Control, HOLD Function, pH Value, Temperature, Includes Container with Storage Solution for Electrode, L 225 x W 35 x H 20 mm : Amazon.de:
Tempcontrol - En - Equipment - PH- and conductivity - PH Tester-series - COND 5E Tester Kit
Digital pH measurement device PH CHECK | TFA Dostmann